Handmade Glass Buttons - Large Round
Each of these unique buttons is beautifully hand crafted. Size medium is approx 1" in diameter.
Made using the traditional glassblowing technique called lampwork, each button is made of borosilicate glass, which is pyrex. The glass is melted and formed by hand with a torch that combines oxygen and propane and then annealed. Annealing is a strengthening process of slowly cooling glass to relieve internal stresses by using a kiln. It reinforces the glass to a near unbreakable durability.